Radiator shutter



Oct. 25, 1932. E. G. PETERsr-:N

RADIATOR SHUTTER Filed Dec. 6, 1929 Sheets-Sheet 2 Patented oet.` 25,1932 .QUNITEDLSTATES Para "EDGARiQ PETERSEN, CHICAGO, ILLINOIS, ASSIGNOTO PNES WINTERFRONT C0MIEANY,` OF CHICAGO, ILLINOIS, A CORPORATION OFDELAWARE RADIATOR SHUTTER Application led D'ecember'S, 1929,1Seria1No.'4;12,195, and 'in Germany .Tune 18, 1928;

Y Il' a radiator core, in which the shutter is carried by relativelystrong parts of the radia ktor core, so that there is no possibility ofthe linjury ofthe honevcombed portion of the core, and no possibility ofloosening or rattling of the shutter.

Another object of my invention is the provision of a novel shutter andradiator core assemblv comprising a shutter `frame supported directlyupon integralflanges carried by the radiator core and eliminating theprior modes of support which are apt to damage the core structure.

Another object of the invention is the provision of a novel built-inshutter assembly capable of long periods of service without rattling,and which includes a pluralitvof Referring to the drawings, of whichthere are two sheets built-in shutter assembly partially broken away toshow the shutter structure;

F ig.r2 is aside elevational view of the radiator core'inpartialsection;

Fig. 3 is a vertical section taken through 55 the shutter unit on theplane of theline 3-3 of Fig. l;

F ig. 4 is a vertical section taken through the entire assembly, on theplane of the line 4 4 of Fig. l;

Fig. 5 is a fragmentary horizontal section, taken on the plane of theline 5 5 of Fig. l.

Referring to Fig. 2, 23 indicates a radiator core having a pair oflateral frame members 24 and 25, preferably formed of'sheet 65 metal,and forming the sides of a core of the usual construction havinghoneycombed channels, ktubes or other members adapted to permit thecirculation of water, and to present an increased cooling area for thepassage of air. The eXact construction of the-honeycombed portion 22 ofthe core is immaterial `and does not affect the merits of the presentinvention, and any of the conventional forms of tubing or honeycombedconstruction may be employed. The side frame members 24 and .25 of thecore, preferably form the outer walls of the core, and are preferablyprovided with'integral forwardly projecting ianges 26 and 27 80 for lthesupport of a shutter frame and shutters further to be described. Theside walls 24, 25 of core 23, are thus provided with forwardcontinuations adapted to provide a support for a radiator shutter, andto aid in directing the air which passes through the shutters into thehoneycombed portions 22 of the core. l

lhile the fianges 26 and 27 are preferably integral parts of theradiator core wall or radiator band, it should also be understood thatexisting core structures may be adapted to support shutters according tothe present invention, by the addition of anges which are notnecessarily integral parts of the band, and all embodiments of theinven-y tion do not necessarily include all of the preferred features.

The integral flanges 26 and 27 are prefer- Fig. 1 is a front elevationalView of -myiably provided with elongated apertures 28 '10o for theattachment of the shutter frame by a plurality of bolts 29, theelongated apertures permitting a slight adjustment of the shutters andframe relative to the core. The base of the radiator core 23 may beenclosed by a sheet metal wall 30 and the back of the core provided withthe usual conduit 31 for water circulation.

The upper portion of the core includes a chamber having out-side walls36, 37 and 38, the rear wall 38 being provided with the usual conduitfor connecting the upper portion of the radiator to a water jacket of aninternal combustion engine. The upper wall 37 and front wall 3G areprovided with an aperture 39, over which is welded a cast metal spoutfitting 40 of any conventional form. The upper water box 36a, which isformed by the Walls 36, 37, 38, is, of course, in communication with thehoneycombed portion 22 of the core 23.

I shall now describe the radiator shutter unit 21, together with theoperating mechanism which may be utilized either for thermostaticcontrol, manual control or other controlling devices.

Referring to F ig. 3, I have here illustrat- Yed the improved shutterframe construction consisting of an end frame member 75 at the top, apair of side frame members 76 and 77, and an end frame member 78 at thebottom. The end frame member 7 5 com.- prises a sheet metal strip,preferably of steel, having a downwardly extending flange 79 on itsfrontv side adapted vto cover a bearing strip 80, further to bedescribed.

The frame member 75 may also be formed with a depending flange 81 at itsrear edge for stiflening the same, and is provided with a plurality ofequally spaced apertures 82 for receiving the trunnions 83 of aplurality of shutters 84. At each end, the end frame member may beprovided with an attaching flange 85 bent down at substantially rightangles and the downwardly extending flange 79 may be widened as at 86 toprovide an auX- iliary attaching flange on the front of the framemember.

The side frame members 76 and 77 may each be formed in a similar stripof sheet metal having a narrow flange 87 bent inward at substantiallyright angles on the rear edge to form a channel. At its forward edge,the frame member 76 is provided with a flange 89 bent inward atsubstantially right angles, and adapted to `hll in the space between arectangular fenestration for the shutters, and the inner edge of theshell 20.

The lower frame member 78 comprises a stamped sheet metal member,preferably of steel, having a plurality of false shutters 9,5 of thesame size as the shutters 84 stamped therein, together with asubstantially il at edge 96 for engagement with the inner edge of theshell 20. The outer edge 97 of the false shutter plate 94 conformssubstantially to the inner boundary of the shell 20, projecting beneathsaid boundary and being engaged thereby. The frame member 78 may beformed with a pressed bead 98 at the upper end of false shutter 95, oneside of the bead comprising the horizontal flange 92 having a pluralityof apertures 99 to receive the trunnions of the shutters 84. At each endthe horizontal flange 92 is turned up to form an attaching flange 101adapted to be received in the channels 102 of the side frame members.

Centrally located in the false shutter plate 96 is an aperture 129adapted to register with the `engine shaft for the insertion of a crank,and this aperture vmay be closed by a cover plate 133 of any convenientor desirable form. The false shutter plate 94 is thus adapted topermanently close the lower end of the radi- I ator core, and to providea finished appearance simulating shutters which extend the full heightof the front of the radiator. The lower part of the radiator core whichcontains the water most apt to be frozen, is thus shut olf fromcirculation of the cooling air, thereby decreasing the possibility offreezing when the temperature unexpectedly drops below the freezingpoint of the cooling liquid.

The shutters 84 comprise strips of sheet metal, preferably outwardlycurved as at 103, and having one edge 104 curved about a rod 105, whichprojects at both ends of the shutter and forms the trunnions 83. Theopposite edge of the shutter is formed with a pressed curved groove 10Gadapted to lit against the curved portion 104 of the adjacent shutter,to completely seal the interveninf,r opening when the shutter-s are inclosed position, and each of the shutters is preferably provided with anactuating arm comprising an inwardly turned flange 107 at the upper endof the shutter having an aperture.v

The shutters may be secured together for simultaneous actuation by ashutter bar 109, provided with a plurality of rivets which are pivotallyconnected to the flanges 10.7 on the shutters. The actuating bar 109bears a rivet 111 projecting upward through a slot in the upper framemember 75, and the rivet 111 t may be pivotally connected to anactuating link 113.

rThe actuating bar 109 and link 113 4are "los lll)

urgedtoward the left'in'Fig.'1'by a'coil spring 99. The separate bearingstrips 80 increase the bearing surface of the trunnions inthe shutterframe, thereby decreasing the amount yof wear and decreasing thepossibility of rattling after a long period of use.

It should also be noted that the present invention is not confined tothe location of shutters in front of the radiator core 23, but in someembodiments of the invention, the core` and shutter may be reversed withrespect to the engine, so that the flanges 26, 27 project rearwardlyfrom the core to support shutters located inside the radiator hood.

It will thus be observed that I have invented an improved radiatorshutter construction in which the shutter unit is supported upon framemembers carried by the outer wall of the radiator core, and the shuttersupporting flanges preferably form integral eXtensio-nsof the side wallof the core. The radiator core and .shutter are capable of long periodsof rough usage, without the possibility of damage to the fragile partsof the radiator core, and without possibility of rattling. The outwardlyextending flanges carried by the radiator corel also enclose the spacebetween the shutter frame and the core, and serve to direct all of theair passing through the shutter frame, through the honeycombed portionsof the cor-e.

While I have illustrated a preferred embodiment of my invention, manymodifications may be made Without departing from the spirit of theinvention, and I do not wish to be limited to the precise details ofconstruction set forth, but desire to avail myself of all changes withinthe scope of the appended claims.

Having thus described my invention, what I claim is new and desire tosecure by Letters Patent of the United States, is:

l. In a radiator shutter device, the combination of a radiator corehaving an outer casing with a pair of projecting flanges forming anextension of the air passage through said core, with a radiatorshut-ter, comprising a frame, said frame being carried by saidprojecting flanges and said flanges enclosing the space between saidframe and core to direct air through said device, and a plurality ofmovable shutters carried by said frame.

2. In a radiator shutter device, the combination of a radiatory corehaving an outer casing with a pair of projecting flanges forming anextension of the air passage through said core, with a radiator shutter,comprising a frame, said frame being carried by said projecting flangesand said flanges enclosing the space between said frame vand core todirect air through said device, and a plurality of movable shutterscarried by said frame, said frame having inwardly projecting flanges andsaid frame being located inside said projecting flanges on said core.

3. In a radiator-shutter device, the combination of a radiator corehaving an outer casing with a pair of projecting flanges forming anextension of theair passage through said core, with a radiator shutter,comprising a frame, said frame being carried by said projecting flangesand said flanges enclosing the space between said frame and core todirect air through said device, and a plurality of movable shutterscarried by said frame, and means for adjustably mounting said shutterframe with respect to said core.

4. In a radiator shutter device, the combination of a radiator corehaving an upper and a lower water boX and an intermediate corestructure, said core structure being enclosed by a radiator core band, apair of integral portions of said radiator core band projectinglaterally beyond said core structure at each side of said radiator core,and a radiator shutter having a substantially polygonal frame and aplurality of shutters, said frame being fixedly supported on saidradiator core by being secured to said core band flanges, said core bandflanges extending over the major portion of the depth of the radiatorshutter frame to direct the air passing through said shuttersv throughsaid core.

5. In a radiator shutter device, the combination of a radiator corehaving an upper and a lower water box and an intermediate corestructure, said core structure being enclosed by a radiator core band, apair 0f integral portions of said radiator core band projectinglaterally beyond said core structure at each side of said radiator core,a radiator shutter having a substantially polygonal frame `and aplurality of shutters, said .frame tion located in said shell with aresilient e flange engaging said shutter frame.

In witness whereof, I hereunto subscribe my name this 2nd day ofDecember, 1929.

EDGAR G. PETERSEN.

IGC

